imaqAddLineContour

NI Vision for LabWindows/CVI Function

imaqAddLineContour

Usage

ContourID imaqAddLineContour(ROI* roi, Point start, Point end);

Purpose

Creates a new line ROI contour and adds the line to the provided ROI.

Parameters

Name

Type

Description

roi ROI* The ROI to contain the new contour.
start Point The pixel location of the start of the line.
end Point The pixel location of the end of the line.

Return Value

Type

Description

ContourID On success, this function returns a ContourID for the contour. You can use the ContourID to reference the contour within the containing ROI. On failure, this function returns 0. To get extended error information, call imaqGetLastError().